package com.lagou.mainMethod;

import com.lagou.config.XMLConfigBuilder;
import com.lagou.mainMethod.sqlSessionFactory.SqlSessionFactory;
import com.lagou.mainMethod.sqlSessionFactory.SqlSessionFactoryImpl;
import com.lagou.pojo.Configuration;
import org.dom4j.DocumentException;

import java.beans.PropertyVetoException;
import java.io.InputStream;
/**
 * 1. 创建sqlSession工厂;调用xmlConfigBuilder方法解析xml并封装到Configuration实体中
 * 2. 创建sqlSessionFactory对象，将完成解析的Configuration传入
 */
public class SqlSessionFactoryBuilder {

    public SqlSessionFactory build(InputStream in) throws DocumentException, PropertyVetoException {
        // 第一：使用dom4j解析配置文件，将解析出来的内容封装到Configuration中
        XMLConfigBuilder xmlConfigBuilder = new XMLConfigBuilder();
        Configuration configuration = xmlConfigBuilder.parseConfig(in);

        // 第二：创建sqlSessionFactory对象：工厂类：生产sqlSession:会话对象
        SqlSessionFactoryImpl sqlSessionFactoryImpl = new SqlSessionFactoryImpl(configuration);

        return sqlSessionFactoryImpl;
    }
}
